FicGemsTop 8 Hard Sci-fi Novels on Royal Road (2026)
Updated November 2026 · ranked by average reader rating
Hard Sci-fi Novels are among the most popular stories on Royal Road.
This guide ranks the best by average reader rating. The current top picks are Systema Delenda Est, Building World Peace with My Bloodthirsty Demon Army and This Necromancer Raised Civilization Instead of the Dead [comedy, kingdom building, litRPG & other popular tags]. Some of them are already finished, so you can binge without waiting for updates.
The 8 best Hard Sci-fi novels on Royal Road
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Systema Delenda Est
Get it on Amazon Book One: Invading The System When the System came to Earth, technology failed, monsters appeared, and billions died as humans were inducted into the game-like physics the System enforced. Unfortunately for the System…
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Building World Peace with My Bloodthirsty Demon Army
by BimbananaWelcome to planet Talvaris, your generic isekai world filled with magic, dragons, and voluptuous female elves. Everything here is as beautiful as the goddess Celes envision it, if you just ignore the slavery and racism on the corner…
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This Necromancer Raised Civilization Instead of the Dead [comedy, kingdom building, litRPG & other popular tags]
by BimbananaIn a world of magic and dragons, humanity’s greatest hope is the Summoned Heroes. The Church of the Goddess, the only institution capable of performing the summoning ritual, did what any reasonable institution would do. They monetized it!…
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Mycology
by Sir Nil⏸ On hiatus · No new chapter since May 25, 2026 (5 months ago).Volume 1: Prologue to Adventure is now out on Amazon in Ebook and Audiobook! Volume 2: They Met in a Tavern is now out on Amazon in Ebook and Audiobook! Volume 3: Sidekicks and Sidequests is now out on Amazon in Ebook and Audiobook!…
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[HIATUSED OLD VERSION - NEW VERSION COMING SOON] Earth's Chosen
by Luca DRThe threat: the destruction of all life on Earth. The agents: a young man with a system, and a military woman in charge of Bureau of Supernatural Affairs. Albert woke up and saw a Quest waiting for him, written in words hovering in the…
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The System Envoy: A SciFi 4X LitRPG Series
[participant in the Royal Road Writathon challenge] A countdown to assimilation. A faction in need of a natural leader. A mission to unite a warring world in one way or another. Aidan Steele is a military veteran who lives an unfulfilling…
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Mask of Humanity
by SlaughterBotA centuries old cyberpunk assassin is reborn into a world of Cultivation. Heaven’s Great Game begins anew. It extends grasping arms through the Material, clutching at hundreds of planets and peoples, none of whom have any idea of what…
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The Hero Without a Past
by DangerguardWhen you wake up on the roof of a burning building, in a city under attack by aliens, you know it's going to be a bad day. When you can't remember your name or your past, you know it's going to be a bad week. When you start seeing…
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Frequently asked questions
What is the best Hard Sci-fi novel on Royal Road?
Right now Systema Delenda Est by InadvisablyCompelled is the highest rated, with an average rating of 4.74 out of 5 and 72 chapters. Building World Peace with My Bloodthirsty Demon Army by Bimbanana comes next.
How are these stories ranked?
Stories are ordered by their average reader rating on Royal Road, and the guide is refreshed as ratings change.
Are there completed Hard Sci-fi novels I can binge?
Yes, including Systema Delenda Est.
Where can I read these Hard Sci-fi novels?
Every story is free to read on Royal Road. Open a story's page and use the Read button to go straight to it. FicGems doesn't host any chapters.